ES2186195T3 - PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE. - Google Patents

PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE.

Info

Publication number
ES2186195T3
ES2186195T3 ES98937532T ES98937532T ES2186195T3 ES 2186195 T3 ES2186195 T3 ES 2186195T3 ES 98937532 T ES98937532 T ES 98937532T ES 98937532 T ES98937532 T ES 98937532T ES 2186195 T3 ES2186195 T3 ES 2186195T3
Authority
ES
Spain
Prior art keywords
light
line
steering wheel
encoder
angular position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES98937532T
Other languages
Spanish (es)
Inventor
Frank Blasing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leopold Kostal GmbH and Co KG
Original Assignee
Leopold Kostal GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leopold Kostal GmbH and Co KG filed Critical Leopold Kostal GmbH and Co KG
Application granted granted Critical
Publication of ES2186195T3 publication Critical patent/ES2186195T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34784—Absolute encoders with analogue or digital scales with only analogue scales or both analogue and incremental scales
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/773—Spiral profiles

Abstract

La invención se refiere a un procedimiento para determinar la posición angular absoluta de un volante de dirección de un vehículo de motor dentro de los 360º; usando un sensor del ángulo de dirección optoelectrónico. El procedimiento comprende los siguientes pasos: irradiación de un codificador (3), configurado como disco acanalado luminoso y que tiene una línea de exploración (8) y una línea de referencia (7), con una fuente de luz (2) para reflejar las líneas (7, 8) sobre la superficie fotosensible de un sensor de líneas (4); durante este paso, la transición de brillo a oscuridad (11, 12) de una pista luminosa (9, 10) se extiende a través varios puntos de la imagen (4''); en segundo lugar, exploración de las pistas luminosas (9, 10) con el sensor de líneas (4); y, finalmente, determinación de la posición angular absoluta del volante de dirección detectando la distancia en subpixeles entre las características correspondientes de la agrupación de señales de la pista luminosa explorada (10)y la pista luminosa de referencia (9) cuando es detectada por el sensor de líneas (4). Un sensor del ángulo de dirección optoelectrico consta de los tres elementos siguientes: primero, un dispositivo con un codificador (3) que está conectado al movimiento giratorio del volante de dirección, y tiene una línea de exploración (8) y una línea de referencia (7). La distancia entre las dos líneas (7, 8) es una medida de la posición angular absoluta del volante de dirección; segundo, una fuente de luz (2) cuya luz irradia un lado del codificador (3); y, finalmente, un sensor de línea estacionario (4) sobre cuya superficie fotosensible las referencias luminosas (9, 10) de la línea de exploración (8) y la línea de referencia (7) se reflejan. Estos tres elementos están dispuestos mutuamente de tal manare que la transición de luz a oscuridad entre la zona iluminada de una pista de luz (9, 10) y las áreas oscuras contiguas se extiende a través de varios puntos reflejados.The invention relates to a method for determining the absolute angular position of a steering wheel of a motor vehicle within 360 °; using an optoelectronic steering angle sensor. The procedure comprises the following steps: irradiation of an encoder (3), configured as a light grooved disk and having a scanning line (8) and a reference line (7), with a light source (2) to reflect the lines (7, 8) on the photosensitive surface of a line sensor (4); during this step, the transition from brightness to darkness (11, 12) of a light track (9, 10) extends through several points of the image (4 ''); secondly, scanning the light tracks (9, 10) with the line sensor (4); and, finally, determination of the absolute angular position of the steering wheel by detecting the distance in subpixels between the corresponding characteristics of the grouping of signals of the scanned light track (10) and the reference light track (9) when detected by the line sensor (4). An optoelectric steering angle sensor consists of the following three elements: first, a device with an encoder (3) that is connected to the rotating movement of the steering wheel, and has a scan line (8) and a reference line ( 7). The distance between the two lines (7, 8) is a measure of the absolute angular position of the steering wheel; second, a light source (2) whose light radiates one side of the encoder (3); and, finally, a stationary line sensor (4) on whose photosensitive surface the luminous references (9, 10) of the scan line (8) and the reference line (7) are reflected. These three elements are arranged mutually in such a way that the transition from light to dark between the illuminated area of a light track (9, 10) and the adjacent dark areas extends through several reflected points.

ES98937532T 1997-06-28 1998-06-22 PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE. Expired - Lifetime ES2186195T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19727572 1997-06-28

Publications (1)

Publication Number Publication Date
ES2186195T3 true ES2186195T3 (en) 2003-05-01

Family

ID=7833965

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98937532T Expired - Lifetime ES2186195T3 (en) 1997-06-28 1998-06-22 PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE.

Country Status (8)

Country Link
US (1) US6304190B1 (en)
EP (1) EP0991918B1 (en)
JP (1) JP2000514199A (en)
AU (1) AU8629098A (en)
BR (1) BR9810492B1 (en)
DE (1) DE59805985D1 (en)
ES (1) ES2186195T3 (en)
WO (1) WO1999000645A1 (en)

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US6322980B1 (en) 1999-04-30 2001-11-27 Aclara Biosciences, Inc. Single nucleotide detection using degradation of a fluorescent sequence
WO2002015238A2 (en) * 2000-08-11 2002-02-21 Sensys Instruments Corporation Device and method for optical inspection of semiconductor wafer
US6873931B1 (en) * 2000-10-10 2005-03-29 Csi Technology, Inc. Accelerometer based angular position sensor
US7085676B2 (en) * 2003-06-27 2006-08-01 Tokyo Electron Limited Feed forward critical dimension control
JP4425220B2 (en) 2003-08-06 2010-03-03 浜松ホトニクス株式会社 Absolute encoder
US6829055B1 (en) 2003-08-07 2004-12-07 Delphi Technologies, Inc. Angular position sensor assembly for use with steering column
US7085638B2 (en) * 2004-07-13 2006-08-01 Robert Bosch Gmbh Steering angle sensor assembly including reduction gear and logic module
JP4846331B2 (en) * 2005-01-18 2011-12-28 株式会社ミツトヨ Photoelectric encoder and its scale
US7326918B2 (en) * 2005-07-05 2008-02-05 Texas Instruments Incorporated Optical position sensor architecture for servo systems
DE102005032870A1 (en) * 2005-07-14 2007-01-25 Leopold Kostal Gmbh & Co. Kg Method for determining the absolute angular position of the steering wheel of a motor vehicle
DE102005032869A1 (en) 2005-07-14 2007-01-25 Leopold Kostal Gmbh & Co. Kg Method for determining the absolute angular position of the steering wheel of a motor vehicle
DE102005042616B4 (en) * 2005-09-07 2010-07-08 Bourns, Inc., Riverside Rotary position sensor
DE102011008151A1 (en) * 2011-01-08 2012-07-12 Schaeffler Technologies Gmbh & Co. Kg Measuring device for a rotation angle
DE102011075635B4 (en) * 2011-05-11 2014-05-08 Ford Global Technologies, Llc Device for determining the steering angle of a steering wheel and steering column module equipped therewith
DE102011079961A1 (en) 2011-07-28 2013-01-31 Dr. Johannes Heidenhain Gmbh Apparatus and method for angle measurement
EP2682718A1 (en) 2012-07-05 2014-01-08 Hexagon Technology Center GmbH Method for recording an absolute encoding of an optical code track
NL2012425B1 (en) * 2014-03-13 2016-01-18 Tacx Roerend En Onroerend Goed B V System and home trainer comprising a disk and a detector for monitoring at least one kinematic parameter of said disk.
US10602654B2 (en) * 2016-05-30 2020-03-31 Kubota Corporation Auto traveling work vehicle
DE102016224012A1 (en) 2016-12-02 2018-06-07 Dr. Johannes Heidenhain Gmbh Position measuring device and method for operating a position measuring device

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JPS57119215A (en) * 1981-01-17 1982-07-24 Omron Tateisi Electronics Co Optical rotary encoder
JPS5999304A (en) * 1982-11-30 1984-06-08 Asahi Optical Co Ltd Method and apparatus for comparing and measuring length by using laser light of microscope system
DE3307639C2 (en) 1983-03-04 1986-10-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Optical potentiometer
DE3731531A1 (en) 1986-09-20 1988-04-07 Fraunhofer Ges Forschung Method for extending the resolution of a line camera or matrix camera
US4996657A (en) * 1988-03-18 1991-02-26 Honda Giken Kogyo K.K. Steering angle detecting system for automotive vehicles
JPH0227506U (en) * 1988-08-12 1990-02-22
US5203420A (en) * 1989-04-25 1993-04-20 Nissan Motor Co., Ltd. Auxiliary steering mechanism for automotive vehicles
DE3914557A1 (en) 1989-05-03 1990-11-08 Heidenhain Gmbh Dr Johannes POSITION MEASURING DEVICE WITH SEVERAL SENSING POINTS
US5243188A (en) * 1991-09-26 1993-09-07 Kabushiki Kaisha Tokai Rika Denki Seisakusho Neutral position detector for steering wheels having a first and second rotors with aligned slots
GB9202868D0 (en) * 1992-02-12 1992-03-25 Lucas Ind Plc Optical torque sensors and steering systems for vehicles incorporating them
DE69520511T2 (en) * 1994-08-25 2001-08-23 Trw Lucas Varity Electric Capteur de deplacement et capteur de couple
DE19500817C1 (en) * 1995-01-13 1996-02-22 Zeiss Carl Jena Gmbh Edge position measurement method for light-dark structure

Also Published As

Publication number Publication date
AU8629098A (en) 1999-01-19
BR9810492B1 (en) 2009-05-05
EP0991918A1 (en) 2000-04-12
JP2000514199A (en) 2000-10-24
BR9810492A (en) 2000-09-12
WO1999000645A1 (en) 1999-01-07
DE59805985D1 (en) 2002-11-21
US6304190B1 (en) 2001-10-16
EP0991918B1 (en) 2002-10-16

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